Discontinued Operations and Other (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Restructuring and Discontinued Operations
Discontinued operations assets	$ 1,006,000		$ 1,050,000
Accrued and other liabilities that are classified as discontinued operations	2,669,000		2,791,000
Certain condensed consolidated statements of operations information for discontinued operations
Net sales		358,000
Earnings (Loss) from discontinued operations before income taxes	383,000	(1,233,000)
Provision (credit) for income taxes	145,000	(779,000)
Earnings (Loss) earnings from discontinued operations, net of taxes	238,000	(454,000)
Net earnings (loss) per share - basic and diluted	$ 0.00	$ (0.01)
Restructuring activities related to discontinued operations
pre-tax gain on sale of assets	797,000	(351,000)
Proceeds from sale of assets	853,000	91,000
Operations Discontinued
Restructuring and Discontinued Operations
Discontinued operations assets	1,000,000		1,100,000
Restructuring activities related to discontinued operations
Net pre-tax charges or credits recognized related to restructuring activities	465,000	825,000
Liabilities for restructuring expenses
Balance at the beginning of the period	2,399,000	3,368,000
Reserve/ Provisions	465,000	825,000
Payments/ Usage	(466,000)	(803,000)
Balance at the end of the period	2,398,000	3,390,000
Operations Discontinued | Severance and benefit continuation costs
Restructuring activities related to discontinued operations
Net pre-tax charges or credits recognized related to restructuring activities		177,000
Liabilities for restructuring expenses
Balance at the beginning of the period		434,000
Reserve/ Provisions		177,000
Payments/ Usage		(256,000)
Balance at the end of the period		355,000
Operations Discontinued | Other associated costs, net
Restructuring activities related to discontinued operations
Net pre-tax charges or credits recognized related to restructuring activities	465,000	648,000
Operations Discontinued | Contract termination
Restructuring and Discontinued Operations
Accrued and other liabilities that are classified as discontinued operations	2,700,000		2,800,000
Liabilities for restructuring expenses
Balance at the beginning of the period	2,359,000	2,901,000
Reserve/ Provisions	39,000	56,000
Balance at the end of the period	2,398,000	2,957,000
Current liabilities of discontinued operations
Accrued and other liabilities	2,400,000		2,400,000
Operations Discontinued | Other
Liabilities for restructuring expenses
Balance at the beginning of the period	40,000	33,000
Reserve/ Provisions	426,000	592,000
Payments/ Usage	(466,000)	(547,000)
Balance at the end of the period		78,000
Sale of specialty paper business
Restructuring activities related to discontinued operations
Net pre-tax charges or credits recognized related to restructuring activities	400,000	600,000
pre-tax gain on sale of assets	800,000
Proceeds from sale of assets	800,000
Liabilities for restructuring expenses
Amount of provision recognized	0
Closure of Brainerd Paper Mill
Restructuring activities related to discontinued operations
Net pre-tax charges or credits recognized related to restructuring activities		200,000
Liabilities for restructuring expenses
Pre-tax gain on sale and disposal of discontinued operations		200,000
Maximum | Sale of specialty paper business
Certain condensed consolidated statements of operations information for discontinued operations
Net sales	$ 100,000