CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash Flows from Operating Activities:
Net loss from continuing operations	$ (44,000)	$ (5,304,000)
Net income from discontinued operations	0	12,243,000
Non-cash charges:
Depreciation and amortization	650,000	823,000
Amortization of other intangible assets	439,000	586,000
Amortization of debt issue costs	25,000	108,000
Recovery for losses on accounts receivable - net	(5,000)	(1,000)
Stock-based compensation	0	13,000
Restricted stock-based compensation	22,000	25,000
Gain on sale of fixed assets	(1,000)	(6,000)
Deferred income taxes	(24,000)	(2,868,000)
Impairment of goodwill and other intangible assets	0	8,311,000
Changes in operating assets and liabilities:
Accounts receivable	(1,059,000)	(1,979,000)
Inventories	1,399,000	(531,000)
Prepaid expenses and other current assets	199,000	(186,000)
Other assets	32,000	(1,619,000)
Accounts payable	384,000	28,000
Accrued compensation and benefits	(618,000)	(641,000)
Accrued other liabilities	(822,000)	241,000
Other liabilities	(9,000)	(9,000)
Total adjustments	612,000	2,295,000
Net cash provided by (used in) operating activities - continuing operations	568,000	(3,009,000)
Net cash used in operating activities - discontinued operations	0	(840,000)
Net cash provided by (used in) operating activities	568,000	(3,849,000)
Cash Flows from Investing Activities:
Capital expenditures	(358,000)	(766,000)
Purchase of net assets of Jiffy Air Tool, Inc.	(6,845,000)	0
Proceeds from disposal of assets	1,000	10,000
Net cash used in investing activities - continuing operations	(7,202,000)	(756,000)
Net cash provided by investing activities - discontinued operations	0	20,149,000
Net cash (used in) provided by investing activities	(7,202,000)	19,393,000
Cash Flows from Financing Activities:
Dividend payments	(360,000)	(1,976,000)
Proceeds from exercise of stock options	62,000	23,000
Purchase of Class A common stock	0	(255,000)
Net proceeds from short-term borrowings	4,537,000	11,793,000
Repayments of term loans	0	(6,343,000)
Repayments of notes payable	(10,000)	(17,000)
Payments of debt issue costs	(50,000)	(30,000)
Net cash provided by financing activities - continuing operations	4,179,000	3,195,000
Net cash used in financing activities - discontinued operations	0	(18,716,000)
Net cash provided by (used in) financing activities	4,179,000	(15,521,000)
Effect of exchange rate changes on cash	25,000	(43,000)
Net decrease in cash	(2,430,000)	(20,000)
Cash at beginning of period	3,699,000	927,000
Cash at end of period	1,269,000	907,000
Supplemental disclosures of cash flow information:
Cash paid for: Interest	36,000	108,000
Cash paid for: Income taxes	335,000	43,000
Supplemental disclosures of non-cash investing and financing activities:
Contingent consideration on acquisition	$ 692,000	$ 0