The amount of annual anticipated saving due to stock split.

No definition available.

Name:	dysl_AnnualAnticipatedSavingDueToStockSplit
Namespace Prefix:	dysl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The percentage of common stock currently outstanding

+ References

No definition available.

+ Details

Name:	dysl_PercentageOfCommonStockCurrentlyOutstanding
Namespace Prefix:	dysl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

It repersents percentage of Voting in Special Meeting

+ References

No definition available.

+ Details

Name:	dysl_PercentageOfVotingInSpecialMeeting
Namespace Prefix:	dysl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents cash paid for each fractional share.

+ References

No definition available.

+ Details

Name:	dysl_ReverseStockSplitCashPayoutPerFractionalShare
Namespace Prefix:	dysl_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents estimated cost for stock split.

+ References

No definition available.

+ Details

Name:	dysl_ReverseStockSplitEstimatedCost
Namespace Prefix:	dysl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents estimated transaction expenses for reverse stock split

+ References

No definition available.

+ Details

Name:	dysl_ReverseStockSplitTransactionExpenses
Namespace Prefix:	dysl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents expected cash payments.

+ References

No definition available.

+ Details

Name:	dysl_ShareHoldersEquityEstimatedCashOutPayments
Namespace Prefix:	dysl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Description of the forward stock split arrangement.

+ References

No definition available.

+ Details

Name:	dysl_ShareHoldersEquityForwardSplit
Namespace Prefix:	dysl_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents minimum number of shares required for reverse stock split

+ References

No definition available.

+ Details

Name:	dysl_SharesHoldersEquityReverseStockSplitMinimumShares
Namespace Prefix:	dysl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Reduction in the number of shares during the period as a result of a reverse stock split.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dysl_TransactionTypesAxis=dysl_ForMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CollateralAxis=us-gaap_CommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Events (Details Textual) - USD ($)		1 Months Ended
Subsequent Events (Details Textual) - USD ($)	May 02, 2019	May 01, 2019	Apr. 30, 2019	Mar. 31, 2019
Line of Credit [Member]
Subsequent Event [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				5.17%
Subsequent Event [Member]
Subsequent Event [Line Items]
Share Holders Equity Estimated Cash Out Payments		$ 1,400,000
Reverse Stock Split Estimated Cost		1,600,000
Reverse Stock Split Transaction Expenses		$ 650,000
Annual Anticipated Saving Due To Stock Split	$ 900,000
Percentage Of Common Stock Currently Outstanding		8.00%
Subsequent Event [Member] \| FOR [Member]
Subsequent Event [Line Items]
Percentage of Voting in Special Meeting		37.00%
Subsequent Event [Member] \| Common Stock [Member]
Subsequent Event [Line Items]
Stock Issued During Period, Shares, Reverse Stock Splits	8,000
Shares Holders Equity Reverse Stock Split Minimum Shares	8,000
Reverse Stock Split Cash Payout Per Fractional Share	$ 1.15
Share Holders Equity Forward Split		8,000-for-1
Subsequent Event [Member] \| Line of Credit [Member]
Subsequent Event [Line Items]
Long-term Line of Credit		$ 750,000	$ 484,000