ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Tables)

9 Months Ended

Sep. 30, 2015

Accounts Payable and Accrued Liabilities, Current [Abstract]

Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

Accounts payable and accrued expenses consist of the following:

	December 31,		September 30,
	2014		2015
Accounts payable	$	7,190,000	$	8,639,000
Accrued warranty		942,000		507,000
Accrued severance		180,000		-
Accrued compensation		1,360,000		372,000
Other current liabilities		430,000		281,000
	$	10,102,000	$	9,799,000

Schedule of Product Warranty Liability [Table Text Block]

The following table summarizes warranty activity for the nine-month periods ended September 30, 2014 and 2015:

	Nine Months Ended
	September 30,
	2014		2015
Accrued warranty reserve, beginning of period	$	522,000	$	942,000
Accrual for product warranties issued		240,000		371,000
Product replacements and other warranty expenditures		(116,000)		(162,000)
Expiration of warranties		(154,000)		(644,000)
Accrued warranty reserve, end of period	$	492,000	$	507,000