Consolidated Balance Sheets - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 31,359,000	$ 29,804,000
Receivables, net	21,249,000	17,481,000
Inventories	14,151,000	14,202,000
Prepaid expenses	2,281,000	930,000
Refundable income taxes	807,000	871,000
Total current assets	69,847,000	63,288,000
Property, plant, and equipment	96,806,000	90,564,000
Less accumulated depreciation and amortization	(48,290,000)	(44,009,000)
Net property, plant and equipment	48,516,000	46,555,000
Goodwill	7,322,000	7,322,000
Intangible assets, net	318,000	636,000
Other assets	1,931,000	1,834,000
Total assets	127,934,000	119,635,000
Current liabilities:
Accounts payable	4,002,000	4,598,000
Accrued expenses	4,698,000	5,059,000
Current installments of long-term debt	856,000	1,011,000
Total current liabilities	9,556,000	10,668,000
Long-term debt, excluding current installments		859,000
Deferred income taxes	3,459,000	2,883,000
Non-qualified deferred compensation plan	1,682,000	1,482,000
Other liabilities	184,000	171,000
Total liabilities	14,881,000	16,063,000
Commitments and contingencies (Note 14)
Stockholders’ equity:
Preferred stock, $.01 par value, 1,000,000 shares authorized; no shares issued
Common stock, $.01 par value, 20,000,000 shares authorized; 7,242,023 and 7,212,464 shares issued and outstanding, respectively at December 31, 2016; 7,170,377 and 7,140,818 shares issued and outstanding, respectively at December 31, 2015	72,000	72,000
Additional paid-in capital	25,216,000	23,705,000
Retained earnings	88,352,000	80,382,000
Treasury stock at cost, 29,559 shares at December 31, 2016 and December 31, 2015	(587,000)	(587,000)
Total stockholders' equity	113,053,000	103,572,000
Total liabilities and stockholders' equity	$ 127,934,000	$ 119,635,000

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).