CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash Flows from Operating Activities:
Net loss from continuing operations	$ (38,000)	$ (5,590,000)
Net income from discontinued operations	0	12,430,000
Non-cash charges:
Depreciation and amortization	975,000	1,227,000
Amortization of other intangible assets	620,000	803,000
Amortization of debt issue costs	42,000	118,000
Recovery for losses on accounts receivable - net	(12,000)	0
Stock-based compensation	20,000	13,000
Restricted stock-based compensation	30,000	39,000
(Gain) loss on sale of fixed assets	(8,000)	3,000
Deferred income taxes	142,000	(3,163,000)
Fair value change in contingent consideration	14,000	0
Impairment of goodwill and other intangible assets	0	8,311,000
Changes in operating assets and liabilities:
Accounts receivable	(2,252,000)	(2,166,000)
Inventories	1,468,000	(681,000)
Prepaid expenses and other current assets	2,154,000	(1,947,000)
Other assets	45,000	60,000
Accounts payable	842,000	1,304,000
Accrued compensation and benefits	(129,000)	(209,000)
Accrued other liabilities	(623,000)	287,000
Other liabilities	(14,000)	(14,000)
Total adjustments	3,314,000	3,985,000
Net cash provided by (used in) operating activities - continuing operations	3,276,000	(1,605,000)
Net cash used in operating activities - discontinued operations	0	(653,000)
Net cash provided by (used in) operating activities	3,276,000	(2,258,000)
Cash Flows from Investing Activities:
Capital expenditures	(444,000)	(894,000)
Purchase of net assets of Jiffy Air Tool, Inc.	(6,845,000)	0
Purchase of patents	(200,000)	0
Proceeds from disposal of assets	8,000	30,000
Net cash used in investing activities - continuing operations	(7,481,000)	(864,000)
Net cash provided by investing activities - discontinued operations	0	20,149,000
Net cash (used in) provided by investing activities	(7,481,000)	19,285,000
Cash Flows from Financing Activities:
Dividend payments	(542,000)	(2,156,000)
Proceeds from exercise of stock options	62,000	23,000
Purchase of Class A Common Stock	(89,000)	(255,000)
Net proceeds from short-term borrowings	2,334,000	10,536,000
Repayments of term loans	0	(6,343,000)
Repayments of notes payable	(14,000)	(27,000)
Payments of debt issue costs	(74,000)	(30,000)
Net cash provided by financing activities - continuing operations	1,677,000	1,748,000
Net cash used in financing activities - discontinued operations	0	(18,716,000)
Net cash provided by (used in) financing activities	1,677,000	(16,968,000)
Effect of exchange rate changes on cash	34,000	(45,000)
Net (decrease) increase in cash	(2,494,000)	14,000
Cash at beginning of period	3,699,000	927,000
Cash at end of period	1,205,000	941,000
Supplemental disclosures of cash flow information:
Cash paid for: Interest	74,000	123,000
Cash paid for: Income taxes	342,000	88,000
Supplemental disclosure of non-cash investing and financing activities:
Contingent consideration on acquisition	$ 692,000	$ 0