Consolidated Condensed Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income (loss)	$ 359	$ (2,885)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	1,659	1,543
Stock-based compensation	634	506
Gain on disposition of property		(55)
Loss on sale of discontinued operations	164
Change in allowance for doubtful accounts	65	(68)
Equity in loss of partnerships	281	175
Changes in operating assets and liabilities:
Accounts receivable	249	2,346
Inventories	(2,615)	1,189
Other assets	(658)	(527)
Accounts payable	1,712	(1,856)
Accrued expenses	1,228	(954)
Other liabilities	62	12
Net cash provided by (used in) operating activities	3,140	(574)
Cash flows from investing activities:
Purchases of property, plant and equipment	(984)	(1,557)
Investment in Soundperience and Other	(730)	(164)
Net cash used in investing activities	(1,714)	(1,721)
Cash flows from financing activities:
Proceeds from long-term debt	10,906	14,923
Repayments of long-term debt	(13,110)	(15,921)
Proceeds from equity offering, net of offering costs		3,678
Proceeds from employee stock purchases and exercise of stock options	164	83
Change in restricted cash	(85)	(31)
Net cash provided by (used in) financing activities	(2,125)	2,732
Effect of exchange rate changes on cash	364	(202)
Net increase (decrease) in cash	(335)	235
Cash, beginning of period	667	369
Cash, end of period	$ 332	$ 604