Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash Flows from Operating Activities
Net (loss) income	$ (15,629,000)	$ 829,000
Non-cash items included in net income:
Depreciation and amortization	2,572,000	1,835,000
Deferred income taxes	(10,815,000)	(825,000)
Impairment of goodwill	28,000,000
Deferred compensation plan	(413,000)	198,000
Stock compensation expense	984,000	1,741,000
Issuance of common shares as compensation	78,000	103,000
Loss on disposition of fixed assets	(31,000)	1,000
Fixed asset impairment		273,000
Allowance for doubtful accounts	49,000	113,000
Inventory obsolescence reserve	143,000	573,000
Changes in certain assets and liabilities – excluding sale of subsidiary
Accounts receivable	(5,421,000)	628,000
Inventories	683,000	(32,000)
Refundable income taxes	775,000
Accounts payable	(1,559,000)	121,000
Accrued expenses and other	(3,243,000)	(5,487,000)
Customer prepayments	419,000	268,000
Net cash flows (used in) provided by operating activities	(3,408,000)	339,000
Cash Flows from Investing Activities
Proceeds from the sale of assets	1,527,000
Purchases of property, plant and equipment	(498,000)	(1,960,000)
Net cash flows provided by (used in) investing activities	1,029,000	(1,960,000)
Cash Flows from Financing Activities
Payments of long-term debt	(22,247,000)
Borrowings of long-term debt	24,411,000
Cash dividends paid	(1,286,000)	(1,256,000)
Proceeds and tax benefits from exercises of stock options	115,000	58,000
Purchase of treasury shares	(106,000)	(344,000)
Issuance of treasury shares	573,000	42,000
Net cash flows provided by (used in) financing activities	1,460,000	(1,500,000)
(Decrease) in cash and cash equivalents	(919,000)	(3,121,000)
Cash and cash equivalents at beginning of period	3,039,000	33,835,000
Cash and cash equivalents at end of period	$ 2,120,000	$ 30,714,000