CREDIT FACILITIES - Narrative (Details) - USD ($)		1 Months Ended			6 Months Ended
	Dec. 14, 2015	Nov. 30, 2013	Jan. 31, 2013	Dec. 31, 2009	Mar. 31, 2017	Apr. 01, 2016	Sep. 30, 2016	Nov. 08, 2013	Jan. 18, 2013	Dec. 16, 2009
Line of Credit Facility [Line Items]
Maximum borrowing capacity					$ 16,000,000
Repayments of long-term debt					14,480,000		$ 19,640,000
Average borrowing capacity					$ 3,400,000
Unused capacity, commitment fee percentage					0.50%
Albuquerque [Member]
Line of Credit Facility [Line Items]
Liabilities assumed					$ 0
Credit Agreement 2013 [Member] | Term Loan A [Member]
Line of Credit Facility [Line Items]
Long-term line of credit									$ 10,000,000
Repayment monthly installments			108 equal monthly installments
Line of credit facility, periodic payment, principal			$ 93,000
Credit Agreement 2013 [Member] | Term Loan B [Member]
Line of Credit Facility [Line Items]
Long-term line of credit									$ 14,000,000
Repayment monthly installments			120 equal monthly installments
Line of credit facility, periodic payment, principal			$ 117,000
Credit Agreement 2013 [Member] | Albuquerque Mortgage Loan [Member]
Line of Credit Facility [Line Items]
Repayment monthly installments		59 equal monthly installments		monthly installments
Credit Agreement 2013 [Member] | Celmet Term Loan [Member]
Line of Credit Facility [Line Items]
Debt instrument, periodic payment, principal		$ 11,000
Sixth Amendment [Member] | Term Loan B [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate					3.25%
Fifth Amendment [Member] | Term Loan B [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	3.25%
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity					$ 16,000,000.0		20,000,000
Maturity date					Jan. 18, 2018
Repayments of long-term debt					$ 5,541,000		3,961,000
Maximum borrowing capacity as percentage of eligible receivables					85.00%
Maximum borrowing capacity as percentage of eligible inventory					35.00%
Maximum borrowing capacity based on eligible inventories					$ 3,750,000.00
Current borrowing capacity					$ 13,800,000.0		$ 16,400,000
Revolving Credit Facility [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Unused capacity, commitment fee percentage					0.25%
Revolving Credit Facility [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Unused capacity, commitment fee percentage						0.50%
Revolving Credit Facility [Member] | Credit Agreement 2013 [Member]
Line of Credit Facility [Line Items]
Average borrowing capacity					$ 16,000,000
Commitment fee amount						$ 23,800
Revolving Credit Facility [Member] | Sixth Amendment [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate					4.25%
Revolving Credit Facility [Member] | Fifth Amendment [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	4.25%
Albuquerque Mortgage Loan [Member] | Credit Agreement 2013 [Member]
Line of Credit Facility [Line Items]
Long-term line of credit										$ 4,000,000
Debt instrument, periodic payment, principal				$ 22,000
Albuquerque Mortgage Loan [Member] | Sixth Amendment [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate					4.50%
Celmet Term Loan [Member] | Third Amendment [Member]
Line of Credit Facility [Line Items]
Face amount								$ 1,300,000