CONSOLIDATED BALANCE SHEETS (in thousands, except share data) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current Assets
Cash and cash equivalents	$ 18,541	$ 11,571
Trade accounts receivable, net of allowance for doubtful accounts of $73 and $96, respectively	3,769	4,725
Inventories	4,168	4,059
Other current assets	708	483
TOTAL CURRENT ASSETS	27,186	20,838
Property, plant and equipment - net	2,458	1,875
Income tax receivable	598	0
Other assets	45	63
TOTAL ASSETS	30,287	22,776
Current Liabilities
Accounts payable	1,301	1,428
Accrued compensation	3,536	2,208
Deferred revenue	1,787	1,926
Other accrued liabilities	858	667
Income taxes payable	218	36
TOTAL CURRENT LIABILITIES	7,700	6,265
Long-term other payables	527	479
COMMITMENTS	0	0
STOCKHOLDERS' EQUITY
Preferred stock - Authorized, 5,000,000 shares, including 200,000 shares of Series A Junior Participating Issued and outstanding, none	0	0
Common stock, at stated value - Authorized, 30,000,000 shares Issued and outstanding, 8,276,813 shares as of December 31,2017 and 8,015,746 shares as of December 31, 2016	18,989	19,204
Accumulated earnings (deficit)	2,089	(3,360)
Accumulated other comprehensive income	982	188
TOTAL STOCKHOLDERS' EQUITY	22,060	16,032
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 30,287	$ 22,776

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.