Note 10 - Pension and Other Postretirement Benefits (Tables)

12 Months Ended

Dec. 31, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

	Pension Benefits
	U.S. Plan						Canadian Plan
	2013			2012			2013			2012
Change in projected benefit obligation
Projected benefit obligation at beginning of year	$	4,100,047		$	3,829,727		$	1,500,537		$	1,441,482
Service cost		—			—			—			—
Interest cost		155,248			166,534			50,692			58,812
Benefit payments		(570,719	)		(257,958	)		(91,381	)		(94,119	)
Administrative expenses		(28,267	)		(28,019	)		—			—
Actuarial (gain) loss		(394,013	)		389,763			6,992			60,912
Plan amendments		—			—			—			—
Currency translation adjustment		—			—			(100,764	)		33,450
Settlements		—			—			—			—
Projected benefit obligation at end of year		3,262,296			4,100,047			1,366,076			1,500,537
Change in plan assets
Fair value of plan assets at beginning of year		2,248,925			2,067,871			1,287,679			1,212,167
Actual return on plan assets		336,348			227,201			85,068			58,042
Benefit payments		(570,719	)		(257,958	)		(91,381	)		(94,119	)
Employer contribution		162,417			239,830			76,523			83,387
Administrative expenses		(28,267	)		(28,019	)		—			—
Currency translation adjustment		—			—			(90,165	)		28,202
Fair value of plan assets at end of year		2,148,704			2,248,925			1,267,724			1,287,679
Plan assets (less) greater than benefit obligation	$	(1,113,592	)	$	(1,851,122	)	$	(98,352	)	$	(212,858	)

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

	U.S. Plan						Canadian Plan
	2013			2012			2013			2012
Non-current liabilities	$	(1,113,592	)	$	(1,851,122	)	$	(98,352	)	$	(212,858	)
Net amount recognized	$	(1,113,592	)	$	(1,851,122	)	$	(98,352	)	$	(212,858	)

Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

	U.S. Plan				Canadian Plan
	2013		2012		2013		2012
Unrecognized net loss	$	818,366	$	1,636,551	$	514,541	$	599,824
	$	818,366	$	1,636,551	$	514,541	$	599,824

Schedule of Net Benefit Costs [Table Text Block]

	U.S. Plan									Canadian Plan
	2013			2012			2011			2013			2012			2011
Components of net periodic benefit cost:
Service cost	$	—		$	—		$	21,100		$	—		$	—		$	—
Interest cost		155,248			166,534			172,221			55,158			58,812			76,866
Expected return on plan assets		(167,347	)		(154,411	)		(142,104	)		(68,171	)		(73,715	)		(84,452	)
Net actuarial loss		116,814			93,661			51,287			—			—			—
Settlement costs		138,357			—			—			—			—			—
Amortization of prior service cost		—			—			—			36,319			34,007			15,070
Net periodic benefit cost	$	243,072		$	105,784		$	102,504		$	23,306		$	19,104		$	7,484

Schedule of Allocation of Plan Assets [Table Text Block]

		December 31, 2013
		US Plan		Canadian Plan
Cash and cash equivalents	Level 1	$	169,927	$	13,788
Mutual funds	Level 1		220,841		1,253,936
Corporate/Government Bonds	Level 1		657,373		-
Equities	Level 1		1,100,563		-
Total		$	2,148,704	$	1,267,724

Schedule of Asset Retirement Obligations [Table Text Block]

	December 31, 2013
	US Plan			Canadian Plan
Equities		51	%		41	%
Fixed income		49	%		59	%
Total		100	%		100	%

Schedule of Expected Benefit Payments [Table Text Block]

	U.S. Plan		Canadian Plan
2014	$	145,378	$	87,974
2015		153,410		74,138
2016		162,891		69,650
2017		173,625		64,882
2018		186,231		60,021
2019 through 2023		952,384		189,317

Schedule of Assumptions Used [Table Text Block]

	U.S. Plan						Canadian Plan
	2013			2012			2013			2012
Weighted average assumptions as of December 31:
Discount rate		4.78	%		3.85	%		4.39	%		3.60	%
Rate of compensation increase		—			—			2.00	%		2.00	%

Schedule of Changes in Projected Benefit Obligations [Table Text Block]

	U.S. Plan						Canadian Plan
	2013			2012			2013			2012
Weighted average assumptions as of December 31:
Discount rate		3.85	%		4.50	%		3.60	%		4.13	%
Expected return on plan assets		7.50	%		7.50	%		5.50	%		6.00	%
Rate of compensation increase		—			—			2.00	%		2.00	%